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On Windows >= Vista, not having an application manifest with a requestedExecutionLevel can cause several kinds of confusing behavior. The first and more obvious behavior is "Installer Detection", where Windows sometimes decides (by looking at things like the file name and even sequences of bytes within the executable) that an executable is an installer and should run elevated (causing the well-known popup dialog to appear). In Git's context, subcommands such as "git patch-id" or "git update-index" fall prey to this behavior. The second and more confusing behavior is "File Virtualization". It means that when files are written without having write permission, it does not fail (as expected), but they are instead redirected to somewhere else. When the files are read, the original contents are returned, though, not the ones that were just written somewhere else. Even more confusing, not all write accesses are redirected; Trying to write to write-protected .exe files, for example, will fail instead of redirecting. In addition to being unwanted behavior, File Virtualization causes dramatic slowdowns in Git (see for instance http://code.google.com/p/msysgit/issues/detail?id=320). There are two ways to prevent those two behaviors: Either you embed an application manifest within all your executables, or you add an external manifest (a file with the same name followed by .manifest) to all your executables. Since Git's builtins are hardlinked (or copied), it is simpler and more robust to embed a manifest. A recent enough MSVC compiler should already embed a working internal manifest, but for MinGW you have to do so by hand. Very lightly tested on Wine, where like on Windows XP it should not make any difference. References: - New UAC Technologies for Windows Vista http://msdn.microsoft.com/en-us/library/bb756960.aspx - Create and Embed an Application Manifest (UAC) http://msdn.microsoft.com/en-us/library/bb756929.aspx [js: simplified the embedding dramatically by reusing Git for Windows' existing Windows resource file, removed the optional (and dubious) processorArchitecture attribute of the manifest's assemblyIdentity section.] Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
23 lines
592 B
Plaintext
23 lines
592 B
Plaintext
1 VERSIONINFO
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FILEVERSION MAJOR,MINOR,MICRO,PATCHLEVEL
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PRODUCTVERSION MAJOR,MINOR,MICRO,PATCHLEVEL
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BEGIN
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BLOCK "StringFileInfo"
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BEGIN
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BLOCK "040904b0" /* LANG_ENGLISH/SUBLANG_ENGLISH_US, Unicode CP */
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BEGIN
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VALUE "CompanyName", "The Git Development Community\0"
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VALUE "FileDescription", "Git for Windows\0"
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VALUE "InternalName", "git\0"
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VALUE "OriginalFilename", "git.exe\0"
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VALUE "ProductName", "Git\0"
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VALUE "ProductVersion", GIT_VERSION "\0"
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END
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END
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BLOCK "VarFileInfo"
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BEGIN
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VALUE "Translation", 0x409, 1200
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END
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END
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